Bump golangci/golangci-lint-action from 5 to 6 (#88)

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
         with:
           go-version: ${{ matrix.go }}
       - name: golangci-lint
-        uses: golangci/golangci-lint-action@v5
+        uses: golangci/golangci-lint-action@v6
         with:
           version: latest
           only-new-issues: true